Modified pepper stem adsorbing material as well as preparation method and application thereof

An adsorption material and technology of pepper stems, applied in the field of modified pepper stem adsorption materials and its preparation, can solve the problems of insufficient raw material sources and small adsorption capacity, and achieve the effects of low cost, low pollution, and wide material sources

Active Publication Date: 2020-04-24
HAINAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the adsorption of biomass waste has a certain effect, there are also p

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  • Modified pepper stem adsorbing material as well as preparation method and application thereof
  • Modified pepper stem adsorbing material as well as preparation method and application thereof
  • Modified pepper stem adsorbing material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Collect the discarded pepper stalks from the pepper stalk processing factory, extract the pepper essential oil by steam distillation for 3 hours, dry the remaining residue at 55°C and pulverize it, and pass through a 60-mesh sieve to obtain the pepper stalk powder;

[0043] (2) adding the pepper stalk powder to deionized water, cleaning and stirring for 30min, adding filter paper suction filtration and cleaning with a suction filter and a Buchner funnel until the lotion is clarified;

[0044] (3) Add the washed pepper stalk powder to the mixed enzyme liquid of pectin lyase and xylanase to modify, the two enzyme liquids of pectin lyase and xylanase are first prepared by solid enzyme and water respectively The mass ratio of 1:100 is mixed and filtered to remove the solid, and then mixed. The mass ratio of pectin lyase and xylanase in the mixed enzyme solution used for modification is 1.5:1, and the ratio of solid to liquid (g:mL) is 1:30, that is, adding 30mL of mixed...

Embodiment 2

[0048] (1) Collect discarded pepper stalks from the pepper stalk processing factory, extract pepper essential oil by steam distillation for 2 hours, dry the remaining residue at 60°C and pulverize it, and pass through a 70-mesh sieve to obtain pepper stalk powder;

[0049] (2) adding the pepper stalk powder to deionized water, cleaning and stirring for 30min, adding filter paper suction filtration and cleaning with a suction filter and a Buchner funnel until the lotion is clarified;

[0050] (3) Add the washed pepper stalk powder to the mixed enzyme liquid of pectin lyase and xylanase to modify, the two enzyme liquids of pectin lyase and xylanase are first prepared by solid enzyme and water respectively The mass ratio of 1:100 is obtained by mixing, filtering out solids, and mixing again. The mass ratio of pectin lyase and xylanase in the mixed enzyme solution used for modification is 1:1, and the ratio of solid to liquid (g:mL) is 1:30, that is, add 30mL of mixed enzyme solut...

Embodiment 3

[0054] (1) Collect the discarded pepper stalks from the pepper stalk processing factory, use steam distillation to extract pepper essential oil, the extraction time is 4 hours, dry the remaining residue at 50°C and pulverize, pass through a 50-mesh sieve to obtain pepper stalk powder;

[0055] (2) adding the pepper stalk powder to deionized water, cleaning and stirring for 30min, adding filter paper suction filtration and cleaning with a suction filter and a Buchner funnel until the lotion is clarified;

[0056] (3) Add the washed pepper stalk powder to the mixed enzyme liquid of pectin lyase and xylanase to modify, the two enzyme liquids of pectin lyase and xylanase are first prepared by solid enzyme and water respectively The mass ratio of 1:100 is obtained by mixing and filtering off the solids. The mass ratio of pectin lyase and xylanase in the mixed enzyme solution used for modification is 2:1, and the ratio of solid to liquid (g:mL) is 1: 30, that is, add 30mL of mixed e...

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Abstract

The invention discloses a modified pepper stem adsorbing material as well as a preparation method and application thereof. The preparation method of modified pepper stems comprises the steps: taking waste pepper stems as raw materials,, firstly, extracting essential oil; then biologically modifying residues rich in cellulose, hemicellulose, pectin and other components after extraction by using pectate lyase and xylanase, and carrying out pyrolysis treatment to obtain the porous modified pepper stalk adsorbing material which can be used for adsorbing various cationic dyes, has the advantages ofwide material source, renewability and low cost, implements waste utilization, and reduces environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of waste recycling, and more specifically relates to a modified pepper stem adsorption material and its preparation method and application. Background technique [0002] Pepper (Piper nigrum L.) is a perennial evergreen vine of the family Piperaceae (Piperaceae), native to India, also known as Heichuan, Baichuan, Guyue, etc. It is an important tropical spice in the world. A condiment that people love. Chinese pepper is mainly distributed in provinces (regions) such as Hainan, Yunnan, Guangdong, Guangxi and Fujian, with a planting area of ​​30,000 hm 2 , with an annual output of about 36,000 tons, ranking fifth in the world. Among them, Hainan is the main pepper producing area, and its planting area and output account for more than 90% of the country. In the pepper industry, a large number of pepper stems are discarded as waste, polluting the environment and causing waste. As agricultural waste, pepper ste...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30C02F1/28C11B9/02C02F101/30
CPCB01J20/20C11B9/027C02F1/283B01J2220/4825C02F2101/308
Inventor 冯建成刘建卓陶锐张容鹄黎吉辉刘维邓浩
Owner HAINAN UNIVERSITY
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